add bat

setup.bat

+@echo off
+setlocal enabledelayedexpansion
+
+echo [INFO] Checking for sqlite3.exe...
+
+:: 1. Check environment or local path
+where sqlite3.exe >nul 2>nul
+if %errorlevel%==0 (
+    set "SQLITE3_BIN=sqlite3.exe"
+    echo [OK] Found sqlite3.exe in PATH
+) else if exist ".\bin\sqlite3.exe" (
+    set "SQLITE3_BIN=bin\sqlite3.exe"
+    echo [OK] Found sqlite3.exe in bin\
+) else (
+    echo [INFO] sqlite3.exe not found — downloading...
+    mkdir bin >nul 2>nul
+
+    set "SQLITE_URL=https://sqlite.org/2025/sqlite-tools-win-x64-3490200.zip"
+    set "SQLITE_ZIP=bin\sqlite3.zip"
+
+    if not exist "%SQLITE_ZIP%" (
+        echo [DOWNLOAD] Downloading SQLite tools...
+        powershell -Command "Invoke-WebRequest -Uri '%SQLITE_URL%' -OutFile '%SQLITE_ZIP%'" || goto :fail_download
+    )
+
+    echo [UNZIP] Extracting...
+    powershell -Command "Expand-Archive -Path '%SQLITE_ZIP%' -DestinationPath 'bin' -Force" || goto :fail_unzip
+
+    if not exist "bin\sqlite3.exe" (
+        echo [ERROR] Failed to find sqlite3.exe after extraction.
+        exit /b 1
+    )
+
+    set "SQLITE3_BIN=bin\sqlite3.exe"
+    echo [OK] sqlite3 installed at: %SQLITE3_BIN%
+)
+
+:: 2. Git merge driver
+echo [CONFIG] Setting up Git merge driver...
+git config merge.sqlite-merge.name "SQLite dump merge"
+git config merge.sqlite-merge.driver "scripts/sqlite-merge.sh %%O %%A %%B %%L %%P"
+
+:: 3. Git diff driver
+echo [CONFIG] Setting up Git diff driver...
+git config diff.sqlite-diff.textconv "scripts/sqlite-diff.sh"
+git config diff.sqlite-diff.prompt false
+
+echo [DONE] Git merge & diff drivers configured successfully.
+exit /b 0
+
+:fail_download
+echo [ERROR] Failed to download sqlite3.
+exit /b 1
+
+:fail_unzip
+echo [ERROR] Failed to extract sqlite3.zip.
+exit /b 1